Internal-combustion engine



H. C. HANSON INTERNALv COMBUSTION ENGINE Filed Nov. 11 1920 WW a qrenceffimup 1/ flrrok/ff zs jacket of the cap piece.

Patented sept. 16, 1924..

HARRY CLARENCE HANSON, or s'r. PAUL, MINNESOTA.

INTERNAL-COMBUSTION ENGINE.

Application filed November 11, 1920. Serial No. 423,248. 7 I

T 0 all whom it may concern.

Be it known, that I, HARRY CLARENCE HANSON, a citizen of the United States, re siding at St. Paul, in the county of Ramsey and State of Minnesota, have invented a new and useful Internal-Combustion Engine, of which the following is a specification.

My invention relates to improvements in internal combustion engines, the primary object being toprovide improved valve mechanism therefor which is simpler, less expensive and more efficient than constructions heretofore employed.

In the accompanying drawing forming part of this specification, Fig. 1 is a side elevation of an internal combustion engine, constructed in accordance with my invention, part of the structure being broken away for the purpose of exposing part of the interior; Fig. 2 is a section taken on the line 2-2 of Fig. 1 and Fig. 3 is a section of a detail portion of the engine taken on the line 3-3 of Fig. 2.

In the drawing, A indicates the engine casing, having a plurality of cylinders 10 cast in block form and having a water cooling jacket 11 surrounding them. The usual pistons 12 reciprocate in the cylinders and a crank shaft 13 is journaled in the crank case 14 on the lower end of the casing. Arranged on the upper end of the cylinder casing and secured thereto by bolts 15 or other suitable means, is a cylinder cap piece B, which has an end wall 16 for the upper end of each cylinder and a portion 17 of a valve seat, surrounded by a water jacket portion 18 which connects freely with the water jacket of the cylinders for cooling purposes. A manifold casing C is clamped on the cylinder cap piece, the same bolts 15 serving to fasten the cylinder casing, cap piece and manifold casing tightly together. This manifold casing has a companion portion 19 for each valve seat surrounded by a water jacketing duct 20 for cooling purposes, which connects freely with the water The two valve seat portions 17 and 19 over each cylinder form substantially a circular valve seat chamber, the axis of which is disposed coaxially with the corresponding cylinder. This chamber is proportioned to hold a rotary disk valve B, there being one valve for each cylinder. Fuel intake ducts 20 and 21 in alignment vertically through the valve seat portions 17 and 19 and exhaust ducts 22 and 23 also in vertical alignment through the valve seat portions 17 and 19 are interrupted by the disk valve as the latter revolves, there being suitably disposed port openings 24 and 25 diametrically arranged apart, which are adaptedv to be brought into registration with the ducts 20 and 21" and 22 and 23, each revolution of the valve. Rotary movement of the valve through 180 degrees is designed to cause the registration of the ducts through the valve and valve seats for four cycle operations of the engine. The sets of "intake ducts and ex haust ducts are set approximately 135 degrees apart so that the exhaust port will not register with exhaust ducts when the intake port registers with the intake ducts and vice-versa. formed with gearteeth 26 and the teeth of all of the valves mesh so that all of the valves revolve in synchronism. This train of gear valves is driven by the gear 27 encased in the cap and manifold elements, a vertical counter shaft 28 and a pair of bevel The rim of each valve is 7 gears 29 and 30, the latter being driven by the crank shaft 13. Each disk valve has hub bosses 31 journaledrin the cap and. manifold elements which serve to hold the valves so that they will revolve evenly about a. fixed vertical axis. 7

The manifold casing G is formed with a pair of fuel intake and exhaust gas compartments 35' and 3.6 which are separated by a thin longitudinal heat conducting partition 37. These compartments are con nected with all of the valve ducts, that is, all of the intake ducts 20 leading into the cylinders are connected with the fuel manifold compartment 35 and all of the exhaust ducts 22 are connected with the exhaust manifold compartment 36. Fuel supply compartment 35 also has a fuel supply pipe 38 connected thereto and exhaust compartment 36 has an outlet pipe 39 leading therefrom. The fuel supply pipe 38 enters the compartment 35 between the ends thereof so that the fuel taken into the various cylinders is substantially uniform. The exhaust pipe 39 leads from one end of the compartment 36, said pipe being thus located to bring a maximum volume of the burnt gases into contact with the partition.

.37. The ports 24 and 25 in the valves are in stepped relation so that the functioning of the parts is successive and the power cylinders will operate in synchronism in the usual manner. An aluminum baffle plate 40 on the partition 37, which is heated by exhaust gases, serves to assist the heated partition 37 in cracking the particles of fuel efliciently and a fresh air duct ll entering the fuel compartment 35 and supplied with an ordinary regulating valve (not shown) serves to admit a regulated amount of air to said fuel supply compartment 35.

The improvement eliminates all cams, push rods, rocker arms, springs and poppet valves and reduces vibration. It allows the use of low grade gasoline and also the use of kerosene efliciently, the hot baffle in the intake manifold chamber serving 'to crack the fuel particles into their constituents.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

An internal combustion engine having a plurality of jacketed cylinders, a cap piece providing a cylinder head for the cylinders and formed with lower valve seat portions therein, one for each cylinder, a manifold casing covering said cap piece, said casing being formed at its under side with upper valve seat portions, one for each cylinder, and at its upper side with an intake and an exhaust compartment, each common to all of said cylinders, meshing disc valves mounted to turn within the seats formed by said valve seat portions, said cap piece and casing having ingress and egress ports therein, intermittently closed by said valves, and respectively bringing said cylinders into communication with said intake and exhaust compartments, the cap piece and casing being formed with jackets for a cooling medium, the same communicating with each other, and with the ackets of the cylinders, said jackets being arranged to segregate the valves from the cylinders and from said compartments to cool said valves from both sides at the centers and at the margins thereof.

In testimony whereof, I have signed my name to this specification.

HARRY CLARENCE HANSON, 

